Answer:
Step-by-step explanation:
Solve it like you would for an equation by isolating the variable h.
First subtract h from both sides.
10+h-h>2+2h-h
10>2+h
Then subtract 2 from both sides.
10-2>2-2+h
8>h
We can then flip 8>h to h<8 just because it's a more standard way of writing it.
Final answer: h<8
Answer:
220.67 pounds
Step-by-step explanation:
This problem can be treated as a compounded interest with a weekly rate of -1%. Cal's weight after 'n' weeks at a 1% loss rate per week is described by the following expression:
For n = 10 weeks, Cal's weight is:
He expects to weigh 220.67 pounds at the end of the ten weeks.
I think the correct answer is c
Answer:
6 ounces
Step-by-step explanation:
Let x = the number of ounces of the 15% alcohol solution needed to be mixed with the 4 ounces of 20% alcohol solution to obtain the 17% alcohol solution.
After converting the percentages to their decimal equivalents, set up the necessary equation as follows:
0.15x+0.20(4) = (x+4)(0.17) Simplify and solve for x.
0.15x+0.8 = 0.17x+0.68 Subtract 0.15x from both sides.
0.8 = 0.02x+0.68 Now subtract 0.68 from both sides.
0.12 = 0.02x Finally, divide both sides by 0.02
x = 6
You need to mix 6 ounces of 15% alcohol solution with 4 ounces of 20% alcohol solution to obtain 10 (x+4)ounces of 17% alcohol solution.
